GRAPES 
Material 
A bunch of grapes per pupil. Concord or other purple grapes if possible. 
White grapes would better not be used for this lesson, because the layer of 
coloring matter next the skin and not in the pulp will not be shown clearly 
to young pupils. Pins; knives; bits of blotter. 
Laboratory Work 
1. Hold a bunch of grapes up by the stem. Notice its 
gencral shape. Tf the bunch is a typical one, you 
will see that it is thicker at the stem end, and: 
narrower at the end opposite. What makes the 
bunch of grapes this shape ? 
2. Look at the separate grapes carefully. Are they all 
exactly the same size? Is there a particularly 
large one at the end? 
3. Holding the stem in your left hand, take a pencil or 
a small stick and lift some of the grapes in the 
upper part of the bunch. Find the stem by which 
these are attached to the main stem. 
Notice that below this small stem there is another 
stem on which grow several grapes. Lift this 
with the pencil. Count the grapes on each of 
these little stems. 
Lift more grapes gently, and see if the stems are 
attached to the main stem, and go on down the 
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